The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2016
Filed:
Oct. 02, 2013
Seiko Epson Corporation, Tokyo, JP;
Teruyuki Nishimura, Matsumoto, JP;
Hiroshi Komatsu, Shimosuwa, JP;
Seiko Epson Corporation, , JP;
Abstract
A wavelength tunable interference filter, an optical filter device, an optical module, and an electronic apparatus include a fixed substrate, a movable substrate, a fixed reflective film provided on the fixed substrate, a movable reflective film provided on the movable substrate and facing the fixed reflective film with an inter-reflective film gap interposed therebetween, and an electrostatic actuator that changes the size of the inter-reflective film gap. The movable substrate is curved in a convex shape in a direction away from the fixed substrate in an initial state. The reflective film has reflectance characteristics in which the first reflectance at a predetermined first wavelength in a measurement wavelength range is lower than the second reflectance at a second wavelength longer than the first wavelength.